TAPES.— I'LATE VII I. 



More flcxiiously acvmiiiuiti-d than the preceding species, 

 with the anterior portion oi' the sliell swollen into an 

 abrupt convexity. 



Species 39. (Mus. Cuming.) 

 Tai'E.s fab.\. Tup. lesld ovalo-trigond, subcuneifornii, ver- 

 sus niai-gitiem compressd, pallide spadiced, fuscescente 

 interrupte relicidaio-d'iradiatd, lavigald, nifente, la- 

 Cere aiiiico rotuiidato, posiico subacuminaio. 



The bean Tapes. Shell ovately triangular, somewhat 

 wedge-shaped, compressed towards the margin, light 

 i'awn-colotir, interruptedly reticulately three-rayed 

 with light-brown, smooth, sliining, anterior side 

 rounded, posterior rather acuminated. 



Ilab. ■? 



This species partakes of the characters of T. Kucliii and 

 fumignia, without being satisfactorily referable to either 

 species. 



